Name: __________________________
Day _1/4 2/5 3/6__ Period _______
Bridges
______
31
Answer the following questions based off of the Building Big Bridge video.
1. ____________________ became the first great bridge building culture.
2. Pontifex is another word for __________________________________.
3. The easiest way to span a valley is with a __________ & ________ bridge
4. What keeps an arch from falling?
5. The crushing action is called _______________ making arch bridges very strong.
6. In 1779 in Colebrookdale England the first ________ bridge was built.
7. Instead of constructing a bridge, iron allowed the designer to __________________
the bridge out of pre-fabricated pieces.
8. ______________ was poured into forms for exact shape and size of the object being
cast.
9. The first bridge to fail was the “Dee” Bridge located in England in ________ AD.
10. The Dee bridge failed because it could no handle the weight of a __________ because
cast iron could not withstand the force __________.
11. _____________ can withstand the tension of a post and beam bridge unlike iron.
12. Eiffel’s bridge towers are wider at the _______ than the top.
13. On a ___________ bridge the center beams switch between compression and tension
creating an equal pull on the bridge.
14. The 1st Cantilever bridge was called _________________________.
Bridges
15. In ___________ the first roadway supported from above is the suspension bridge in
England.
16. The cables on a suspension bridge are connected at both ends to an ______________.
17. Suspension bridges use both ______________ and ____________ forces to keep the
bridge standing.
18. Washington Robeling became chief engineer of the ______________ Bridge in 1869.
19. A ______________ is a huge airtight wooden box large enough for men to work
inside of.
20. If you come out of compressed air to quickly it creates ___________ bubbles in the
blood stream.
21. For nine years Robeling guided the building of the Brooklyn Bridge from his
_________________.
22. _____________ Strauss built and completed the Golden Gate Bridge.
23. Strauss founded the Golden Gate Bridge by selling ____________.
24. Charles Ellis, the designing engineer of the Golden Gate Bride was __________.
25. The Golden Gate Bridge spans _____________ ft.
26. The tower in the Golden Gate Bridge is __________ ft. high.
27. _____________ wire create the suspension cables used to connect to the
anchors at the ends of the suspension bridge.
28. The Golden Gate Bridge opened in ____________.